Katie Bolack, of McGrath Kiama, said no expense had been spared in creating the open plan unit, which features Miele appliances, a polished stainless splashback, underfloor bathroom heating, marble floors and tiling and curved walls adding to the free flow of space.

"It is very, very luxurious," she said.

"The unit is exclusive and beautiful with amazing views of all the Kiama beaches, from Surf Beach all the way to The Farm."

Flowing from the living room is a spacious balcony with an electric Vergola roof and outdoor kitchen fit for any home master chef.

And upstairs, the roof terrace really brings out the wow factor.

Ms Bolack said the terrace, complete with a dream barbecue, was an ideal entertaining space, or perfect for simply soaking up the alfresco lifestyle.

She said the property would suit a buyer looking for a luxurious retreat or a high-class investment.

"It's just a short stroll to cafes and restaurants, the location is really fantastic," she said.

There are a number of other units for sale in the building, including No 5, which is also a penthouse.

Apartments 1 and 2 are also on the market with prices starting from $700,000.

Ms Bolack said unit 2 had been specially modified with slightly lower kitchen and bathroom benches to suit a person in need of wheelchair or disabled facilities.

All units would provide buyers an opportunity to enjoy the laid-back Kiama lifestyle, Ms Bolack said.